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Recommendations for 'soapsuds' to use spray plants with tons of aphids on them please?

Discussion in 'General Gardening Discussion' started by Barders, May 2, 2020.

  1. Barders

    Barders Gardener

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    Hi,

    Researching the ongoing problem with aphids on my Buddeliah, which are now turning the lovely new leaves curly, lead me to find a site that said to mix washing up liquid and water put it in a spray bottle to spray the aphids every day.

    BUT it didn't say if 'normal' washing up liquid was OK. I use a normal cruelty-free one, is that OK, or should I buy a particular type please, I don't want to damage the plant. :spinning:

    Thank you.
     
  2. Nosivad

    Nosivad Apprentice Gardener

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    Could not find a reply, I too would like clarification on this method of tackling Aphids.
     
  3. JWK

    JWK Gardener Staff Member

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    You need to use a pure soap, ie no additives nor fragrances. Maybe a handwash for delicates. Just mix a couple of teaspoons to a litre of water and spray onto the affected parts.
     
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    • shiney

      shiney President, Grumpy Old Men's Club Staff Member

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      Of course, technically, you can't use it as a 'pesticide' as it's not licenced for that purpose (stupid rules :doh:) but there's nothing to stop you from 'washing' your plants with it. :whistle: :roflol:
       
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      • pete

        pete Growing a bit of this and a bit of that....

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        Isn't the correct term "soft soap ",whatever that is.
        It all goes soft if you leave it long enough. :smile:
         
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        • The Buddleja Garden

          The Buddleja Garden Gardener

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          You need horticultural soft soap, and it is legal to use it as a pesticide. It's old fashioned soap, saponified vegetable oil, rather than a harsh modern detergent such as that found in washing up liquids.

          Here is a supplier:
          Soft Soap
           
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          • pete

            pete Growing a bit of this and a bit of that....

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            Good to see it's real cheap. :biggrin:
            I had a feeling it would be .;)
             
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            • mazambo

              mazambo Forever Learning

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              That'll be useful @The Buddleja Garden I've just started trying distilled white vinegar and water but I'm a bit concerned about burning spiders and the likes.
               
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              • pete

                pete Growing a bit of this and a bit of that....

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                Presumably soap kills spiders as well.
                 
              • Janet mahay

                Janet mahay Gardener

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                Hi i read use milk to get rid of aphids and some pests i havent used it yet for pests but i might try it
                i have used milk on its own and with water on some plants and getting rid of leaf spot on my rose and red robin and it did the trick
                 
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                • Victoria

                  Victoria Lover of Exotic Flora

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                  I use Aldi brand washing up liquid and it is great for instantly killing ants too. I don't kill spiders.
                   
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                  • JWK

                    JWK Gardener Staff Member

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                    This is what I use, must have bought it over 10 years ago as a little goes a long way:

                    20210607_073329.jpg
                     
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                    • Graham B

                      Graham B Gardener

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                      I've had decent results with regular detergent. No damage to plants, and no impact on my apple tree or the fruit.

                      I add anti-aphid insecticide to the sprayer too, giving them a double whammy. The detergent gets through their protective honeydew, and the insecticide makes sure they're dead. It's not ideal for insects, but one good dose of this tends to be all I need, so long term it's not a big deal.
                       
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                      • mazambo

                        mazambo Forever Learning

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                        @JWK can i ask how you use it please.
                         
                      • JWK

                        JWK Gardener Staff Member

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                        @mazambo add 2 teaspoons (it's not exact) to every litre of water in your sprayer. Then spray the aphids directly. They will need repeat spraying a few times.
                         
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